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IMPROVEMENT IN RnvoLvINe I'LUB-cLnANnN.

SPECIFICATION.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, G. E. BINGHAM, of Milwaukee, in the county ofMilwaukee, and State ofA Wisconsin have invented a new and usefulImprovement in Revolving Flute-Cleaner; and I do hereby decfa're `thatthe following is a full, clear, and exact description thereof, whichwill enable others skilled `in the'I-artto make andl use the same,reference being had tothe accompanying drawings forming part of thisspecification, in which` l Figure I is a perspective view of my improvedflue-cleaner. i Figure 2 is a side view of the same, the-detachable barsbeing removed.

i Figure 3 is an end viewof the same. I

Figure 4 is a vertical cross-section of the same, taken th'rough theline :e z, igaZ. Figure 5 is a detailed sectional view ofthe same, takenthrough the line yy, iig. `3. 1 Similar letters of reference indicatelike parts.

My invention has for its object to furnish an improved machine forcleaning lime scale, 85e., from boiler ilues; and it consists in therevolving iluelcleaner, formed by combining the woodenhars, metallicheads, binding bands, binding rods, and shaft with each other, ashereinafter` more fully described J are the standards, upon the upperends of which are formed the bearings forthe journals 'of theshaft I, fas shown in gs. 2 and 3. E are metallidheads securely attached to thgshaft I, so as to revolvewith it.` The i heads E are made with inwardlyprojecting anges D for the ends of thebars and Aptorest upon, as shownin figs. 2 and 5. F are wooden bars, the ends of which reist upon theanges D, formed upon the inner side of the heads E, and they are securedin place by the binding bands C and B. The bars are made a. littleshorter than the bars F, so that they may be removed and insertedwithout removing the bands C. To enable this to be done, the portion b',of the bands B, that cover the bars, is hinged Yto the main parts ofsaid bands, as shown in gs. 1, 2, and 4. The ends of the bands and C aresecured to each other bybein'g bent outwardjand having a bolt passedthrough them, as shown in the drawings. G are the binding rods whichpass through ears formed upon the edges of the heads E, and they areheld in place and tightened by nuts screwed upon their ends upon eachside of the said ears, as shown in the drawings. L is an openspringsriug, placed within the cylinder to support the middle parts ofthe bars F and A, as shown in figs. 2 and 5. H is a loose pulley, and Kis a driving pulley, which areattached to one of the ends of the shaft Iin the ordinary manner. In `using the apparatus, the hinged parts b' ofthe bands B are turned back,`and the bars A removed.` The lues to be tcleaned are then placed in the interior of the machine, together with aquantity of iron `turnings, or other suitable hard substance. Y The luesand iron turnings are then wet with water, and the machine closed andset in motion. The lime or other incrustation, as it is ground from thedues, escapes from the machine through the spaces between the barsA Fand A. The machine must be stopped, and the progress `of the workexamined i every few hours, so that the lues and iron turnings may bekept wet orV moist. In. thisV wayrwith a cylinder two feet in diameter,from twenty to thirty ues can be cleaned at a.' time, and even i a'greater number, when Vthe cylinder is made larger, thereby greatlydiminishing the time and expense of cleaning a set of boiler ues.

What I claim as new, and desire to secure by Letters Patent, is- Therevolving flue-cleaner, formed by the combination and arrangement ofthe'heads E, woodenbars F and A, binding bands B and C, binding rods G,and shaft I, substantially as hereindescribed, and for Vthe purposes setforth. p

. G. E. BINGHAM.

Witnesses: u

EDWARD BUCKLEY, WILLIAM TAIT.

